What is the difference between economic and thermodynamic efficiency? How has global energy use grown in the past 50 years? What is expected to happen in the future? What is the Hubbert curve? Has it accurately predicted U.S. and global oil production? What are the three possible errors of optimistic predictions of future oil production? Is it currently possible to dramatically reduce energy demand without reducing living standards? What are some of the factors that maintain our dependence on fossil fuels? Why might installation of renewable energy be more feasible in developing countries? How can low fossil fuel prices be viewed as a market failure? What are the environmental effects of electricity deregulation? What are some policies that could encourage a transition to renewable energy sources?